The Catholic Church has many unchangeable, general principles which do not contain exceptions.  For example, divorced and (so-called) “re-married” Catholics are forbidden from receiving Holy Communion.

Pope Francis falsely teaches that all the Catholic Church’s general principles must be adapted to local circumstances and cultures.  Here are his words: 

[C]ultures are in fact quite diverse, and every general principle … needs to be inculturated[1], if it is to be respected and applied.

Quoted from Pope Francis’s apostolic constitution, Episcopalis Communio, Sept 15, 2018, §7 (ellipse is in the original; emphasis added).